Machine for straightening metal drums



Aug- 18, 1953 E. A. scHLANK 2,649,129

MACHINE FOR STRAIGHTENING METAL. DRUMS Filed Aug. 27. 1951 4Sheets-Sheet l INVENTOR. El?? SCLZCM?, 2c

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Filed Aug 27, 1951 Allg' 18, 1953 E. A. scHLANK 2,649,129

MACHINE FOR STRAIGHTENING METAL DRUMS Filed Aug. 27. 1951 4 Sheets-Sheet4 Y`rlll/IIL gli/4 l I l l 1 n l I s A- z ifi ..zn E

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Y ATTORNEY5 Patented Aug. 148, 1953 MACHINEFOR STRAIGHTENING METAL DRUMSEugene A. schlank, cincinnadonio Application August 27, 19151,Serial'llo.` 243;798,

(Cl. 15S-Jill 3 Claims.. 1 This invention relates to a device forstraightening metal drums.

An object of this invention is to providea device` which will straightenmetal drums having a cylindrical side wall and formedwith a pair ofspaced beads between the ends thereof.

Another object of this invention is to provide a drum straighteningdevice which will not only straighten the side wall of the drum and alsostraighten the annular beads on the side Wall, but will also straightenthe flange or chime at the bottom of the drum.

A further object of this invention is to provide a device of this kindwhich is simple in construction and is capable of handling drums ofdifferent diameters.

With the above and other objects in view, my invention consists in thearrangement, combination and details of` const-ruction disclosed in thedrawings and specification, and then more particularly pointed out inthe appended claims.

In the drawings,

Figure l is a detail side elevation of a drum straightening machineconstructed according to an embodiment of this invention,

Figure 2 is a detail front elevation of;y the device,

Figure 3 is a sectional View. taken on the line 3 3 of Figure 1,

Figure 4 is a fragmentary sectional View taken on the line 4 4 of Figure1j,

Figure 5 is a fragmentary sectional view taken on the line 5 5 of Figure2,

Figure 6 is a fragmentary sectional View taken onV the line 6 6 ofFigure 1,

Figure '7 is a fragmentarysectional View; taken on the line 'I 'I ofFigure 1.

Referring to the drawings, the numeral I designates generally a framestructure which includes a base II having secured thereto upright framemembers I2 and I3. The frame members I2 and I3 have secured theretoforwardly extending tubular frame members I which are disposed inparallel relation with respect to the base II and project forwardly fromthe forward frame member I3.

An upper pair of roller carrying -shafts I5 are journalled through theframe members I2 and I3, being rotatably supported from bearings I1carried by an intermediate horizontal frame member I8. The shafts I6have secured thereto rollers I9, and 2l and intermediate beaded rollers22 and 23 are disposed between adjacent pairs of rollers I9, 20 and 2|.The beaded rollers 22 and 23 are adapted to engage on the concave innerside of a bead formed in the drum between the ends of the drum so thatthebeadw-illf be re-established or straightened.

One of the shafts Iii` has securedA thereto a.

' 28, and a chain 23is trainedabout the-two sprockets. 28 so that thetwo shafts I5 will be rotated.

in the same direction and at the. same.. speed.

An intermediate idler roller 3.0 is rotatably;

carried by a plate 3ft which is connected between the forwardk ends ofthe frame barsrISl and the roller 3 0 is adapted tov engagel between thetwo. forward rollers ZI as shown in- Eigure 2. A pair of relatively-small idler or bracing; rollers 32 are also rotatably carriedbytheplate 3Ill and engage. f the forward rollers 2liA outwardly fromthefpoint ofY contact ofv intermediateroller30 with the rollers. 2|.

A lower pair off shafts 33 are-disposed below the upper shafts I.Ii=.and are xedly secured to a hinge plate or leaf? 341which is rockablycarried by a horizontally disposed bar 35A fixed between the uprightsidesfoff the rear frame I2. The leaf` 34 is secured toa shaf-t 33.by.meansof'a U-Shaped clamp 35 so that. shaft 3131 will be held againstrotation and will be permitted' tof. havevertical. rocking. movement aswill' be hereinafter described.

The forward ends ofv the non-rotatableA shafts 33 are secured to ahorizontally disposedV plate 3T andthe plate 3='I hasextending-'forwardly therefrom aV pair of ears 38l between which theupper end of a plunger rod 39is adapted to barock-ably mounted. The rod39 is secured to a piston 40 slidable in a pressure cylinder 4I and thecylinder 4I is adapted to be connected to a source of pressure supply bymeans of pipes 42 and 43.

Each shaft 33 has rotatably mounted thereon rollers 44, 45 and 46, andalso has mounted between pairs of these roll-ers grooved rollers 4l and48. The grooved rollers 4l and 48 cooperate with the beaded rollers 22and 23 in effecting the straightening of the bead in the cylindricalwall of a drum generally designated as D. The forward roller 4B of eachshaft 33 is formed with an offset 49 within which the flanged outer endof the drum is adapted to engage. The flange or chime of the drum isstraightened by means of a bevelled roller 5| rotatably carried by ashaft 52. The shaft 52 is xed to a rock lever 53 which is rockablymounted on a pivot 54 carried by an upright support 55.

The roller I, as shown in Figure 2, is disposed between the two lowerrollers 46 and is moved forwardly to operative position with upwardmovement of plate 31 and shafts 33 by means of a link 56 pivotallysecured to the ears 38. The upper end of link 58 is pivotally connectedto a depending arm 56awhich extends downwardly from lever 53.

In the use and operation of this device, the 1 drum will have one headthereof removed and the drum is then extended over rollers 2 I, 20 andI9 respectively. At this time'the shafts 33 will be in dotted lineposition shown in AFigure 1. The shafts 33 are then raised by upwardmovement of piston 40 so that rollers 44, 45 and 46 will engage theouter side of the cylindrical drum wall and press the drum against theinner or upper rollers I9, and 2l. As the side of the drum is beingstraightened by rolling contact with the upper and lower rollers, thechime or flange at the bottom of the drum will also be straightened bythe bevelled roller 5 I.

I do not mean to conf-lne myself to the exact details of constructionherein disclosed, but claim all variations falling within the purview ofthe appended claims.

What I claim is:

1. A drum straightening device comprising a base, a pair of uprightframe members carried by said base adjacent the rear thereof, a pair ofshafts rotatably carried by said frame members and disposed in parallelrelation with respect to said base, rollers fixed on said shafts, asecond pair of shafts disposed below said rst pair of shafts, meansrockably supporting one end of said second pair of shafts from saidframe ineinbers,rollers rotatably carried by said second pair of shafts,a chime engaging roller rockably carried by said base between saidsecond pair of shafts, means engaging the forward ends of said secondpair of shafts for moving said second pair of shafts toward or away fromsaid first pair of shafts, and means connected with said lastmentionedmeans for rocking said chime roller to operative position with rockingof said second pair of shafts to operative position.

2. A drum straightening device comprising a base, upright frame means atone end of said base, horizontally disposed frame means extendingforwardly from said upright frame means, an upper roller shaft rotatablycarried by said upright frame means and extending forwardly therefromparallel with said horizontal frame means, a, lower pair of shafts,means rockably supporting the rear ends of said lower shafts from saidframe means, rollers carried by said upper and lower shafts, meansengaging the forward ends of said lower shafts for rocking the latterfrom a lower inoperative position to an upper operative position, achime engaging roller, means rockably supporting said chime engagingroller between the forward ends of said lower shafts, means connectingsaid chime roller supporting means with said shaft rocking means forrocking movement therewith, and a bracing roller carried by the forwardportion of said 1 horizontal frame means for bracing said upper shaft. Y

3. AN drum straightening device comprising a base, upright frame meansat one end of said base, horizontally disposed frame means extend- A ingforwardly from said upright frame means,

an upperpair 'of roller shafts rotatably carried by said upright framemeans and extending forwardly therefrom parallel with said horizontalframe means, a lower pair of shafts, means rockably supporting the rearends of said lower shafts from said frame means, rollers carried by saidupper and lower shafts, hydraulic piston means engaging the forward endsof said lower shafts for rocking the latterv from a lower inoperativeposition to an upper operative position, a chime engaging roller, meansrockably supporting said chime engaging roller between the forward endsof said lower shafts, means including a link pivotally connected at oneend to said chime roller and pivotally connected at its other end tosaid shaft rocking means for rocking movement therewith, and bracingrollers carried by the forward portion of said horizontal frame meansfor bracing said upper shafts.

EUGENE A. SCHLANK.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 225,586 Fox Mar. 16, 1880 494,567 Horner Apr. 4, 18931,151,995 Batchelder Aug. 31, 1915 1,420,506 Wachowitz June 20, 19221,486,975 Lindgren Mar. 18, 1924 2,061,501 Brown Nov. 17, 1936 2,082,177Nelson June 1, 1937 2,112,509 Wery Mar. 29, 1938 2,309,344 HarringtonJan. 26, 1943 2,573,300 Beaumariage Oct. 30, 1951 FOREIGN PATENTS NumberCountry Date 49,861 Switzerland Feb. 14, 1918 227,860 Great Britain Oct.22, 1925

